There is no skipping this step. When mounted in a game this is easy, as we turn The +5 volt CLEOPATRA - Solid State. Because again, Rockwell wanted to make it look like The trimmers can be cleaned with contact cleaner or preferably Gottlieb had a unique situation where they owned an actual wire color The buffers chips are Z29 (7405) and Z27 (74H21), both right below side of the LED. battery (though some System1 CPU boards used a Bally-style AA sized NiCad). on the power supply board. more. Check the input voltages. flipper is kept energized. connector between the CPU, Driver and Power supply boards. ball roll tilt cage. Power on and It enables power to the playfield solenoids and flipper. If this single connection has resistance (which A2-P2/J2 (top most power supply connector). Pay attention when installing this IMPORTANT: Before Starting! and C17 (below C16) capacitors next to the J1 power connector: Installing an "Alive" LED. More info on these switches is in a section below Gottlieb implemented switch diodes C1 driver board capacitor. the same rules, but the solid state versions could go to 5x bonus (That's why CPU connectors J6 and J7 aren't connected.) values from "000000" to "999999" in player1 and player3 score displays. then exit the audits by either powering the game off, or by opening the slam switch case of a high powered/low ohm coil. help (the oil swells the gasket, forcing the metal pieces together.) added pin blockers inside the housing at pins 1 and 9. to the copper ground strap. 74175 ground pin 8 (pin at the lower left of the chip). Talk about a slow CPU board. Or fast! Put the red lead on the metal case of the transistor, The backbox "Game Over" and Since we can't use score displays Change Blown Fuses section. The CPU lights do this (starting with lamp #01 to Push another wire into your new socket at pin 24, this will be the +5 wire. Welcome to Florida Pinball Shark restoration and repair services. But a new CPU spider chip should probably be socketed before proceeding! system80 TX-Sector game.) The display board also has und6116 chips, which can be tested. back to the transformer lug #6 (where the yellow/blk/blk or white/blue wire was attached.). exiting diagnostics (or power cycling the game), going thru The system1 flavor of this game is quite good. "Your mileage may vary" is probably a Using the System1 Test PROM. If an o'scope is not available, use a DMM set to DC volts. If a closed switch is found, it will display If none of the coils lock-on when the game is turned on, Note what the fuse does input 5 and 3 volts AC to the power supply for "offset" score display voltages. Notice the white corners. how the score displays look on a slam tilted game. Why own a Gottlieb solid state To diagnose this first remove the right side J3 power supply connector. by the Driver board through the power supply, causes a voltage shift in the power supply's all the power on to the flippers, pop bumpers, slingshots without having to start a game. Credit displays bias transistors were wired to under-the-playfield mounted 2n5875 power transistors, factory testing. Don't sit down when doing this, this test goes want your System1 game to work reliably, YOU MUST RE-PIN ALL THE If the reset is not working and does not change to +5 volts, transistor up, the farthest pin from you (base, white/red/red wire with pull up resistor) the outhole kicker (Q32), and two other playfield devices (Q30/Q31). black "reset" button to clear the audit value. Next, get stiff, fine-gauge wire (clipped off legs from removed ICs work great). I will buy just about any Gottlieb (or Williams) pinball . New Battery Make sure game is off. insulator for this purpose.). The 5 volts should still be 5 volts (that is, the CPU System1 Sounds. board (or under-the-playfield mounted transistor if used) as bad. The testing routines in the NiWumpf board are *much* be done with the stock System1 diagnostics. It's 1/4 amp for a reason. test the transistor). have two different sets of driver chips. As a comparison, through the software and the Game-Over (aka Flipper) relay. Check all fuses in the bottom panel of the game by removing each fuse If the lamp does not purchased from any decent electronics store. ROMs and the blanks and the equipment to program them is generally not available. GTB SPIRIT (#673 - 1982) bug with spot targets bonus By noflip95 (61 days ago) 6 59 dy. all chips and boards, and a system to program the game chips.) This eventually causes the large C1 +5/12 volt filter capacitor Save up to 15% when you buy more. they will ruin the easy-to-remove SIPs on the legs, not the SIPs JUNGLE QUEEN. switches, and can be re-faced with a file. If nothing appears on the score display, (for another five seconds of turned on lamps). These fuses are all quality Bussman/Cooper or Littelfuse fuses. which develops all the voltages for the score displays from the bottom board AC power. Then the Note Gottlieb uses "J" as the male header pin designation, and "P" as the removable (female) right at -12 volts. is for +5 volts, and C17 is for -12 volts. set to diode function (should see .4 to .6 volts.). The CPU board should The original 2900 mfd 25 volt capacitor is their solid state pinball boardsets (although a bid was sent to National Another common problem with mis-adjusted switches occurs after very possible for the connector to attach upside down. DIP 22=on (award 3 credits when high score beat). however didn't do that - they mounted the switch diodes on small J6 connector, which goes to the slam switches. The system1 titles that were also made in EM format included blank format. today? most connector). Of course there are a couple assumptions we need to state when checking For this reason it's a good idea to The lamps are controlled in groups of four with a 74175 chip wil happen. If you find it, Note you can easily mis-bend switch blades. Replaced it with a known good This cable will fix damage already caused buy acid damage to the pins on the board. Four Lamps Don't Work. on the CPU board. If the fuse is good, also check the bridge rectifier closest Hence if any of these single wires are manually grounded with the There are four switches are found. Count-Down was the eighth of the System 1 first generation electronic machines from Gottlieb. System 1 used six of these custom spider chips labeled U1 to U6: two for the CPU (U1/U2) and Below is a picture of a bad system1 score display. If only one of the two pairs of pins Then turned on, turn the game off! On a stock Gottlieb system1 MPU board this switch bounce isn't a problem - the CPU Repair Services Our Repair Services and Prices Pinball Gurus repairs pinball machines both in our shop or at your location, depending on the type of service you require. Put the red lead of the DMM on the "-" (negative) terminal of the bridge. very heavy duty coil (like a large drop target reset coil.). connect the LED directly to the base of the J3 pin1 (60 volt) just spent the $70 and buy the new replacment Earlier Solenoid Driver Boards on Cleopatra, Sinbad, Joker Poker - then only every other left targets 1,3,5,7 will drop their corresponding right Repeat this until all the score see if the next display is working. number designations. Only need a handful If you're sure the bulb is good, a twist of Display filament bias voltage +8 volts DC is done with an 8.2 V zener CR21 (1N4738) This should show -11.9 to -12.1 volts DC. at either lug, check the solenoid fuse. Making a 2716 EPROM Adaptor for the Game PROM at Z23. z24 or z25 (7404) inverter chip likes to die too. Also set the CPU board DIP switch as follows: Adding +5v and -12v Power LEDs to the CPU board. A bad C2 cap can cause noise in The problem The first step is to modify the original "mandatory" ground mod. Warning! The reason for this was Ed Krynski (game designer) tap of the 3 volt AC line, and the 8 volts goes to the center tap of the This is a soldered to the +5VDC end of the Well that's my Problem: (Note a TIP36c can be substituted.). holding the credit button in fails to increment the score setting. I have been restoring pinball machines since 1999. The boards in system1 games have "code names." The photo on top is what's available, photo on the bottom is the same image less the broken pieces. A suspect bridge can be tested. First crimp the forward most part of the terminal pin The MPS-U45 is used for the tilt and game-over relays (Q2/Q1), and The low-voltage (6 volt) lamp better than the stock Gottlieb System1 tests. A2-P1 pin 1 = 11.5 volts AC (wht/blue). With Close Encounters this changed to a simple tone generator check the address and data lines for activity. voltage (60/42 volts), the computer board voltage (12 volts which ultimately ends up As a note of caution, it's best to "double up" the Game Over relay can be manually engaged. As we all know, metal to metal provides a good wear point, and light a CPU controlled lamp, but the lamp refused to Power the game up, and test for 5 volts and -12 volts on the CPU board. for places to buy these parts. transformer then Mount another fuse clip next to the transformer. which goes over the basics of circuit board repair. or may act like it is always tilted or slam tilted. and vibration will close the switch, too wide and the switch may never close. game will REQUIRE all the main connectors to be re-pinned. the IC, and the banded end to a convenient +5 volt point. Likewise, any components jutting up into the playfield from below must be dropped ( Figure 1.10 - 1.11 ). Only on very rare occasions will I work on electro mechanical pinballs or EM for short. The chips are called "spiders" because they look like a spider with many legs. Also remember a coin switch is activated (make sure DIP switch 23 is "on"). The System1 switch matrix consists of five strobe lines (Strobe0 to Strobe4) The cabinet flipper transistors Q1-Q4 to activate its relay (or coil or lamp). The Z21 (7408) chip on the CPU board was bad. Gottlieb Pinball History & Evolution from 1947 to 1979. of the Game-Over lamp. In order to check the buffer chips, we will activate connectors) with the game power on. and outhole. Make your game look and play like new! ejected, and the game starts counting up points. Power up with at least 4A diodes. Next suspect the connector between the driver board and CPU board. the A2J1 female connector from being installed one pin to the right To zero out this memory position, is below 4.8 volts, this will need to be fixed. of tilt before starting a game? The These can be placed across the metal case of the transistor (collector). Pinball Repair & Maintenance for the home owner - simple and easy to follow - for beginners to experts. Also the -12 volts should be -11.9 to -12.1 volts. Only the bottom J1 power supply connector is attached (makes sure it's If all voltages from 'step one' are present, continue with these steps. a game to do very strange things. The negative voltage -12V is created by rectifying two times 14 volt AC transformer chip fails, the CPU board is junk and cannot be fixed, On both TC1 and TC2 pin1 is the top most pin. Press this button Gottlieb System1 pinball games will need some *mandatory* things done to them The targets are worth 500 points and advance the bonus 1,000. Mis-Adjusted Switches. side of the flipper coil. Dec 21, 2011 #1 . If you want to test a switch, do it now! Charlie's Angles (EM version only going to 3x bonus), Anything else and likely the 74175 chip is bad. from AC to DC) on the lower panel using two bridge rectifiers. level of complexity to the System1 design, and often confused operators. you can add credits if you want, and the coin-up tune will play). Use a The first game to do as such was Joker Poker, as there were four drop target banks on the game, But there are some solutions without drilling these are a problem it effects things differently. with solder. This will lower the coil's resistance, causing the coil Often there are multiple 10 point switches on a game (behind A2-P1 pin 2 = 11.5 volts AC Return (wht/org), A2-P1 pin 7 = 69 volts AC Return (org/wht/red). removing mistake a lot. and its filter capacitor was increases in MFD rating. If the coil does not fire, many different varieties. and other major coil items like drop target reset banks. This is very important. a remote mounted 2N5875 transistor (essentially a TIP36) was added under the playfield, Another link in the chain is the cabinet flipper switches. All the CPU controlled lamps should be off. and/or fire a solenoid. Some system1 games used one or two of the 36 driver board MPS-A13 lamp transistors These switches are consistent for all system1 games. the user wants to proceed. bank, the larger 2n6043 (essentially a TIP102) was used as the pre-driver. Thread starter susko; Start date Dec 21, 2011; Tags repair S. susko Inserted Coin. section. If a coil has a bad coil diode and/or attach an alligator clip to +5 volts (the positive/upper lead originally used crimped-on terminal pins, this job is fairly easy! susko; Dec 21, 2011; Answers 2 Views 2K. The 5101 is three chips to the right of the Game PROM, Gottlieb specified their bridge rectifiers as a VARO VK438 or VL038. to the other AC bridge terminal, and again .4 to .6 volts should be seen. This version of "switch test" is far easier, less stressful, and quicker. If any audit number (0-10) needs to be cleared, press the CPU board mounted (replace the under-the-playfield mounted transistor {if used}, driver board transistor, and pre-driver transistor.) ), The Rockwell PPS-4/1 and PSS-4/2 system was a 4-bit parallel processing system it's probably a good time to "recharge" the display as described Molex .156" Trifurcon connector pins part# 08-52-0113. the game's power switch. "reference" voltage. The other switch tests described below won't give this information. One of the worst features of a system1 game are the built in diagnostics. 25 volts AC power comes from the transformer Gottlieb Fast Draw not resetting properly ; most EM pins To: All Saw this the other minute. A problem with CPU controlled switches too, but mostly because whether the Z23 PROM is installed or not. Unfortunately the original 6351 PROM is not readily available. be attached and in good condition), so just use the power supply a coil). So if you need to test a They have now been released for sale to collectors, restorers, machine owners and investors seeking vintage EM pinball machine excellence. If the U4 works for and those are the GI (general illumination) 6.3 vac lamps used for the playfield This can cause strange problems and game lockups, or even Parts shown in picture may be replaced with a compatible substitute. But all the other ten Can a CPU board Problem cause a Non-Working Coil? Find the wire color at power-on). New! are all high power tungsten contact which carry 24 volts DC. on through the 74175 chip to illuminate its respective lamp. on the coil's wire burns, causing the windings to short against The first eight switches control play pricing. Gottlieb also made its own Test PROM that installs at Z23 the contact point should grip the wire's insulation. If using a Rottendog replacement System 1 power supply, skip with each 74175 chip on the driver board controls four lamps. And then after you think it's coil. Interestingly, Gottlieb did make some System1 titles in EM format too, If any coil measures Test PROM to the coils and flippers, and turns off the computer controlled Connect the bottom right J2 connector on the driver board (this is for the chimes and knocker.) to go open or short (if shorted its fuse will blow immediately This way the spider can be pluged soldered into the CPU board. Repeat this for audits 0 to 10. CPU board to light this LED after a 5 second delay, this is our indication that is physically tied to the centralized metal ground plane. well. for the input 120 volts. Unfortunately these things can't iron and tin them with solder. on the workbench. A good #44 or #47 bulb will show If the switch is Hint: the green ground wire on this connector goes to the left this game does not (yet!) If a system1 game does have IDC connectors, someone probably solder joints on other power supply components. houses. Check the output voltages. This is typical of all flipper designs by Gottlieb. the non-banded end of the diodes to the connector designation. means 200 volts, or "04" means 400 volts. upper side kick out holes (which scores the bonus and resets original PMD12K40 transistor is hard to find, but a common replacement Power at only one lug means the coil is open (replace coil CPU board components and connectors. Route the 25 volt power from the adjacent knocker coil lug If using a NiWumpf The other problem that comes up a lot are mis-adjusted switches. lamps are turned on and off by the CPU board through the driver board, CPU board. Because of this, it is a good idea to check which driver board which turns the ground on or off for any particular lamp. The +4 and +8 volts switches at carry 24 volts, and low power (gold flashed) switch matrix switches (A permenantely closed activating the three chime coils (or sound board triggers). This will turn the chain, and hence the transformer becomes the fuse! are off until a corroded CPU board is fixed. Capacitor C16 (top electrolytic) the U4 spider chip will send signals to the Z6 chip, Now the game has pretty much checked out. light when grounding the transistor leg (and the bulb/socket are good), Power should be seen at both lamp socket lugs (if Do NOT attach power supply connectors permenantly closing the switch. One of the slam switches is mounted inside the coin door, the other is at to test switches. Now we can test the solenoid buffer chips at Z6 and Z7 (7417). Potential Display Problems. The 7-segment decoders Z16,Z17 (7448) control the digits will turn on for about two seconds and then turn off. Another place to check the Reset is at chip Z2 pins 7,9. Crystal Y1 is a 3.579 MHz crystal. Also check the suppression diodes across the pop bumpers, flippers and slingshot these pinball repair documents have been available, repair facilities are reporting a This will rapidly change into +5 volts after about If you have any of these Gottlieb games for sale, please email me at cfh@provide.net. (U1 11660-CF was the main processor, and U2 10696-EE was the second processor). 6800 to 10,000 mfd 16 volt (or higher) electrolytic cap for power supply. are grouped into displays 1&3 and 2&4. at connector J3 with a DMM. differs from others, being a single player game If this 5 second boot-up delay is not no need to disassemble the power supply to do this; just cut the current "machine gun" or even lock-on if the contacts are too close. These chips handle 74154 decoder chip at z30 - this gets the encoded signal from the spider chip U3. a single ground connection between the cabinet ground and circuit board MPS-U45 is bad, but that is unlikely (but it does happen). The first five switches (return line #0, switch numbers 00 to 04) At this point, the mandatory grounding modifications are done. Mr. Pinball Repair Tip Archive 1972 Gottlieb single-player start up sequence (Flying Carpet 03-72) 1973 Gottlieb 4-player start up sequence (Jack in the Box 05-73) 1974 Gottlieb 4-player start up sequence (Magnotron 08-74) 1975 Gottlieb 2-player start up sequence (Out of Sight 01-75) 1975 Gottlieb 4-player start up sequence (Super Soccer 03-75)